package com.xddcodec.fs.storage.plugin.cos;

import com.qcloud.cos.ClientConfig;
import com.qcloud.cos.auth.BasicCOSCredentials;
import com.qcloud.cos.auth.COSCredentials;
import com.qcloud.cos.exception.CosClientException;
import com.qcloud.cos.exception.CosServiceException;
import com.qcloud.cos.http.HttpProtocol;
import com.qcloud.cos.model.ObjectMetadata;
import com.qcloud.cos.model.PutObjectRequest;
import com.qcloud.cos.region.Region;
import com.xddcodec.fs.framework.common.enums.StoragePlatformIdentifierEnum;
import com.xddcodec.fs.framework.common.exception.StorageConfigException;
import com.xddcodec.fs.framework.common.exception.StorageOperationException;
import com.xddcodec.fs.storage.plugin.core.AbstractStorageOperationService;
import com.xddcodec.fs.storage.plugin.core.config.StorageConfig;
import com.qcloud.cos.COSClient;
import com.xddcodec.fs.storage.plugin.cos.config.CosConfig;
import lombok.extern.slf4j.Slf4j;

import java.io.InputStream;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * 腾讯云 OSS 存储插件实现
 */
@Slf4j
public class CosStorageOperationService extends AbstractStorageOperationService {

    private COSClient cosClient;

    private String bucketName;

    @SuppressWarnings("unused")
    public CosStorageOperationService() {
        super();
    }

    @SuppressWarnings("unused")
    public CosStorageOperationService(StorageConfig config) {
        super(config);
    }

    @Override
    public String getPlatformIdentifier() {
        return StoragePlatformIdentifierEnum.COS.getIdentifier();
    }

    @Override
    protected void validateConfig(StorageConfig config) {

    }

    @Override
    protected void initialize(StorageConfig config) {
        try {
            CosConfig cosConfig = config.toObject(CosConfig.class);
            COSCredentials cred = new BasicCOSCredentials(cosConfig.getAccessKey(), cosConfig.getSecretKey());
            Region region = new Region(cosConfig.getRegion());
            ClientConfig clientConfig = new ClientConfig(region);
            clientConfig.setHttpProtocol(HttpProtocol.https);
            this.cosClient = new COSClient(cred, clientConfig);
            this.bucketName = cosConfig.getBucket();
            log.info("{} 腾讯云 COS 客户端初始化成功: bucket={}", getLogPrefix(), this.bucketName);
        } catch (StorageConfigException e) {
            // 重新抛出配置异常
            throw e;
        } catch (Exception e) {
            log.error("腾讯云 COS 初始化失败: {}", e.getMessage(), e);
            throw new StorageConfigException("当前存储平台配置错误：客户端初始化失败");
        }

    }

    @Override
    public void uploadFile(InputStream inputStream, String objectKey) {
        ensureNotPrototype();
        try {
            ObjectMetadata objectMetadata = new ObjectMetadata();
            PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectKey, inputStream, objectMetadata);
            cosClient.putObject(putObjectRequest);
            log.debug("{} 文件上传成功: objectKey={}", getLogPrefix(), objectKey);
        } catch (Exception e) {
            log.error("{} 文件上传失败: objectKey={}", getLogPrefix(), objectKey, e);
            throw new StorageOperationException("阿里云OSS文件上传失败: " + e.getMessage(), e);
        }
    }

    @Override
    public InputStream downloadFile(String objectKey) {
        return null;
    }

    @Override
    public void deleteFile(String objectKey) {

    }

    @Override
    public String getFileUrl(String objectKey, Integer expireSeconds) {
        return "";
    }

    @Override
    public boolean isFileExist(String objectKey) {
        ensureNotPrototype();
        return cosClient.doesObjectExist(bucketName, objectKey);
    }

    @Override
    public String initiateMultipartUpload(String objectKey, String mimeType) {
        return "";
    }

    @Override
    public String uploadPart(String objectKey, String uploadId, int partNumber, long partSize, InputStream partInputStream) {
        return "";
    }

    @Override
    public Set<Integer> listParts(String objectKey, String uploadId) {
        return Set.of();
    }

    @Override
    public void completeMultipartUpload(String objectKey, String uploadId, List<Map<String, Object>> partETags) {

    }

    @Override
    public void abortMultipartUpload(String objectKey, String uploadId) {

    }
}
